基于计算机并口的磁敏无接触式角度传感器测试系统

本文设计了一套基于计算机并口的磁敏无接触式角度传感器测试系统，给出了实现方法。通过在VB程序中利用DLL文件ipout32．dll的两个输入输出函数来访问计算机并口以达到控制ADS774和步进电机等外围器件的目的。该系统电路简单，与计算机接口方便，实现了测试过程的自动化和可视化。实际使用效果表明其测试结果准确可靠，可大幅度提高测试效率。

A Testing System for the Magnetic Contactless Angle Sensor based on the Parallel Port of Computer

A testing system,for the magnetic contactless angle sensor is designed and the achieving method is given in this paper. The input and output functions of inpout32.dll are used in VB program to access the computer＇s parallel port to attain the object of controlling peripheral devices such as ADS774 and stepping motor, etc. The system has simple hardware and convenient interface to computer .The measuring process is automatically and visible. The practical applications indicate that the test results are accurate and reliable and measuring efficiency can be increased greatly.